SR 178 over KERN RIVER


+35.54907, -118.61536
35°32'57" N, 118°36'55" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 178 over KERN RIVER
Structure number:50 0278
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:200.1 ft. [61.0 m]
Total length:403.9 ft. [123.1 m]
Roadway width between curbs:60.0 ft. [18.3 m]
Deck width edge-to-edge:62.0 ft. [18.9 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1974
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:3,900 [as of 2009]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:78.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018GoodGoodGoodGood390078.0
November 2016GoodGoodGoodGood390078.0
November 2014GoodGoodGoodGood390078.0
November 2012FairGoodSatisfactoryGood390077.0
November 2010FairGoodSatisfactoryGood510077.0
December 2008FairGoodSatisfactoryGood510077.0
November 2006FairGoodSatisfactoryGood510077.0
November 2004FairGoodSatisfactoryGood510077.0
December 2002FairGoodSatisfactoryGood289080.0
March 2001FairGoodSatisfactoryGood289080.0
March 1997FairGoodSatisfactoryGood289080.0
March 1995FairSatisfactoryGoodGood290080.0
November 1993FairSatisfactoryGoodGood340080.0
August 1991FairSatisfactoryGoodGood340080.0